A full linear 3 × 3 color correction between images

Abstract

This work presents a novel color correction algorithm between images (or image regions) depicting the same environment. Color transfer is achieved by a linear full 3 × 3 mapping between the color responses. In particular, this linear map equalizes the colors of images of the same scene acquired under different illuminants and/or by different devices. Since the complexity of the proposed method is directly proportional to the number of picture pixels, color correction is performed in linear time within the pictures size.